18651220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{1049}}^1$

素因数の和:1192

約数の個数: 48

約数和(自身を含む): 45158400

約数和(自身を除く): 26507180

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 127, 140, 254, 508, 635, 889, 1049, 1270, 1778, 2098, 2540, 3556, 4196, 4445, 5245, 7343, 8890, 10490, 14686, 17780, 20980, 29372, 36715, 73430, 133223, 146860, 266446, 532892, 666115, 932561, 1332230, 1865122, 2664460, 3730244, 4662805, 9325610, 18651220]

約数ペア:

[(1, 18651220), (2, 9325610), (4, 4662805), (5, 3730244), (7, 2664460), (10, 1865122), (14, 1332230), (20, 932561), (28, 666115), (35, 532892), (70, 266446), (127, 146860), (140, 133223), (254, 73430), (508, 36715), (635, 29372), (889, 20980), (1049, 17780), (1270, 14686), (1778, 10490), (2098, 8890), (2540, 7343), (3556, 5245), (4196, 4445)]